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US 11,441,965 B2Granted
Autonomous and irreversible pressure variation detector
OwnerChristian Huginventor
Life of this patent
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Abstract
A device for detecting a sudden pressure variation in a fluid, including a housing open at one of its ends, a wall closing the housing to create a chamber, the wall being configured such that, when the external pressure outside the chamber is substantially stable or varies slowly, the internal pressure of the chamber is close to the external pressure, and the wall having mechanical characteristics such that it breaks when subjected to a predetermined difference between the external pressure and the internal pressure.
Claims17
A device for detecting a pressure variation in a fluid, comprising:
- a housing open at one of its ends,
- a wall closing the housing to create a chamber,
- wherein the wall is porous and its porosity is chosen to allow pressure to be balanced between an inside and an outside of the chamber and the wall breaks when the pressure of the fluid outside the chamber exceeds the pressure inside the chamber by a predetermined value.
A device for detecting a pressure variation in a fluid, comprising:
- a housing open at one of its ends,
- a wall closing the housing to create a chamber,
- a measuring device positioned in the chamber, the measuring device being a timestamp machine,
- the wall being configured such that, when an external pressure outside the chamber is stable or is varying below a predetermined pressure variation rate, an internal pressure of the chamber balances with the external pressure, and
- the wall having mechanical characteristics such that it breaks when subjected to a predetermined difference between the external pressure and the internal pressure.
2 more elements
Dependencies are inferred from the claim text.